Self-propelled carpet shampooing machine



FIG. 1 is a perspective view looking down and to the right upon the front of a self-propelled carpet shampooing machine;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a right side elevational view thereof; and,

FIG. 7 is a left side elevational view thereof. 

The ornamental design for a self-propelled carpet shampooing machine, as shown and described. 